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arXiv · hep-ph/9211222

Analyticity and the Isgur-Wise Function

Adam F. Falk·Michael Luke·Mark B. Wise
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Abstract

We reconsider the recent derivation by de Rafael and Taron of bounds on the slope of the Isgur-Wise function. We argue that one must be careful to include cuts starting below the heavy meson pair production threshold, arising from heavy quark-antiquark bound states, and that if such cuts are properly accounted for then no constraints may be derived.

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Adam F. Falk, Michael Luke, Mark B. Wise. 1992-11-06. Analyticity and the Isgur-Wise Function. https://doi.org/10.1016/0370-2693(93)90892-l

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